Match List I with List II:

List I
A. Frederick Griffith
B. Francois Jacob & Jacque Monod
C. Har Gob

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Question

Match List I with List II:

List I
A. Frederick Griffith
B. Francois Jacob & Jacque Monod
C. Har Gobind Khorana
D. Meselson & Stahl

List II
I. Genetic code
II. Semi-conservative mode of DNA replication
III. Transformation
IV. Lac operon

Choose the correct answer from the options given below:
(1) A-III, B-II, C-I, D-IV
(2) A-III, B-IV, C-I, D-II
(3) A-II, B-III, C-IV, D-I
(4) A-IV, B-I, C-II, D-III

Accepted Answer

Correct Answer: B — A-III, B-IV, C-I, D-IIStep-by-step Solution:Frederick Griffith: Discovered bacterial transformation (1928) – the transfer of genetic material between bacteria. Hence, A matches with III (Transformation).Francois Jacob & Jacque Monod: Proposed the lac operon model for gene regulation in bacteria. Hence, B matches with IV (Lac operon).Har Gobind Khorana: Contributed to deciphering the genetic code and synthesized the first artificial gene. Hence, C matches with I (Genetic code).Meselson & Stahl: Demonstrated semi-conservative DNA replication using isotope labeling. Hence, D matches with II (Semi-conservative mode of DNA replication).Thus, A-III, B-IV, C-I, D-II corresponds to option B.Key Concepts: Landmark experiments in molecular biology: transformation, lac operon, genetic code, semi-conservative replication.

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